Steam-pump governor.



No. 677,940. A Patented "'luly 9, 190|.

E. M. GARR. sTEAm'PumP aovennon.

. (Appn'cmon med mg. e, 1900.)

(uuml.)

,PATENT FFICEQ EMORY M. CARR, OF NEWCASTLE, INDIANA.

STEAM-PUMP GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 677,940, dated July 9, 1901. Application iiled August 6, 1900. Serial No. 26,051. (No model.)

T all whom it may concern Be it known that I, EMORY M. CARR, a citizen of the United States, residing at Newcastle, in the county of Henry and State of Indiana, have invented certain new and useful Improvements in Steam-Pump Governors, of which the following isa specification.

The principal object of my said invention is to provide an apparatus by means of which a steam-pump may be automatically governed by means of the pressure in the water-mains suppliedby said pump. y

An apparatus embodying said invention will be first fully described and the novel features thereof then pointed out in the claims.

Referring to the accompanying drawings, which are made a part hereof, and on which similar reference characters indicate similar parts, Figure l is a side elevation ofsuch an apparatus, and Fig. 2 a central vertical sectional view of the same.

through a stuffing-box 4, as shown.

The valve to be controlled is to be understood as situated in the steam leading to a steamepump, and the steam may be understood as entering and leaving thebody 1 of said valve in the directions indicated by the arrows. Within this valve-body is abalanced valve 2, and the valve-stem 3 passes out The upper end of the valve-stem is connected by means of a link 5 to one arm of a walkingbeam or lever 6, which is pivoted at '7 on a support 8, secured to the valve-body l. The cylinder 9 of my governor is also connected to a branch 10 of the support 8, said branch v10 being' shown as also constituting one of the heads of said cylinder 9, which cylinder has upon its other end another cap or head 11. Gaskets 12 aid in forming tight joints between the cylinder and its ends. A piston-rodY 13 enters this cylinder and has a piston-head composed of a disk 14, a cup-leather 15, and a washer 16, said parts being secured on the lower end of said piston-rod by a nut 17'. Surrounding the piston-rod near the upper end of the cylinder is a loosely-mounted annular disk 19, and interposed between this disk and the head 14 is a :spring 20. In the upper cylinder-head is a vbushing 21, thro ugh which a screw-follower 22 extends, by means of ,which the disk 19 can be driven inwardly or drawn outwardly and the tension on the spring 2O increased or diminished, said followerbeing provided with a hand-Wheel 23 for the purpose'. There is also a lock-nut 24 having a similar hand-wheel for locking the follower in place when the same is adjusted. In order that there shall be no twisting strain on the'parts, balls 25 are interposed between the follower 22 and -the disk 19, forming a ball-bearing at this point. The follower 22 is perforated longitudinally, and the piston-- rod 13 passes up through the perforation. A link 26 connects this piston-rod with an arm of the walking-beam or lever 6. The connection between the link 26 and the walking-beam 6 is an elastic one. On the upper end of`said linkfare placed a cone-shaped washer'27 and a cone-shaped nut 28, which are disposed, respectively, above and below said walking-beam where the link passes v through it. A shoulder or collar 29 on the link 26 forms abearing at one endfora spring 30, the other end of which bears against the under side of the loosely-mounted washer 27. The connection between the link 26 and the walking-beam 6 is thus of such a character that the link may pass on up through the walking-beam after the valve 2 is seated (should there be such a pressure in the water-main as to cause it to do so) without further affecting said valve, the spring 30 being simply in such a case compressed to a corresponding extent.

Connection is made between the cylinder 9 and the water pipes or mains supplied by theY pump whose steam is controlled by the valve 2,said water connection being by means ofra pipe leading into the lower end of said cylinder, of which pipe, a fragment 31 is shown, and the valve 2 is therefore adapted to be controlled by the water-pressure from said main or discharge-pipe, which obviously as it increases will operate through the devices described to close the valve 2,while the spring 20 will operate as the pressure decreases to open said valve.

Having thus fully described my said invention,what Iv claim as new, and desire to secure by Letters Patent, is-L f l. The combination, with the steam-valve in the pipe leading to a steam-pump, of the body or casing, a standard or support thereon, a beam or lever pivoted on said standard IOS) at a point between its ends, a connection between one of its ends and the stem of said valve, a cylinder on the opposite side of said standard connected with the mains of the pumping system, a piston therein, an adjustably-mounted disk above said piston,a spring interposed between them, a piston-rod' running from said piston to the outside, and a connection between the end of said rod and the end of said pivoted beam opposite the end connected to the valve-stem, substantially as set forth.

2. The combination,of the steam-valve casing, the valve therein, its stem leading to the outside, a cylinder connected to the mains of I[he pumping system, a frame connecting said cylinder to said casing, a standard on said frame, a beam pivoted on said standard, a connection between the valve-stem and one end of said beam, a piston in said cylinder, a spring arranged to act on said piston oppositely to the pressure of the water in the main, means for adjusting the tension of said spring, means for locking it in adj usted position, a rod running from said piston tothe outside, and an elastic connection between said rod and the other end of said pivoted beam, substantially as set forth. v

3. The combination, in a steam-pump governor, of the valve, the valve-stem, a walking-beam, a link connecting said valve-stem to one end of said Walking-beam, a cylinder connected to the water-main, a piston in said cylinder, a spring in said cylinder acting oppositely to the force of the water from the main, a link connecting the piston-rod to the other end of the walking-beam, said link passing through a perforation in said walking-beam provided with a nut on the upper end and a loosely-mounted washer below/,and ashoulder below said washer with a spring interposed between said washer and said shoulder, substantially as and for the purposes set forth.

a. The combination, in a steam-pump governor, with the valve in the steam-pipe leading to said pump, of a cylinder connected -with theWater-main and rigidly supported from the body of said valve, a piston in said cylinder, a walking-beam mounted on a rigid support also carried from the body of the valve, connections from said valve and said piston to the opposite ends of said walkingbeam, a tubular screw in the head of said cylinder through which the piston-rod passes, a loosely-mounted disk on the lower end of said tubular screw, balls interposed between said disk and said screw whereby a ball-bearing is formed, and a spring interposed between said piston and said disk.

In witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 2d day of August, A. D. 1900.

EMORY M. CARR.

W'itnesses:

CHESTER BRADFORD, JAMES A. WALSH. 

